Erwin Weather Forecast
- 68
- 88
Chance Thunderstorms
- 66
- 86
Rain Showers Likely
- 66
- 87
Rain Showers Likely
- 64
- 82
Rain Showers
- 60
- 76
Rain Showers Likely
- 58
- 74
Chance Rain Showers
Today 19 Sep Unicoi
Mostly sunny. Areas of fog in the morning. A chance of Showers and Thunderstorms early in the afternoon. A slight chance of Showers and Thunderstorms late. Highs in the 70s and 80s. Temperature falling into the mid 70s in the afternoon. Light Winds. Chance of rain 40 percent.
Tonight 19 Sep Unicoi
Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the 60s. South Winds 10 Mph or less. Chance of rain 20 percent.
Erwin Temperature Statistics
September Temperature
Elizabethton Municipal Airport (20.5 miles)
Lowest 8 September, 2026
62.6 °FAverage September
75.5 °FHighest 3 September, 2026
95 °F
Climate (2021–2026)
Elizabethton Municipal Airport (20.5 miles)
Average Low 2021–2026
47.1 °FAverage 2021–2026
57.3 °FAverage High 2021–2026
68.8 °F